Antonyms of adj one-to-one

1 sense of one-to-one

Sense 1
one-to-one -- (used of relations such that each member of one set is associated with one member of a second set)

INDIRECT (VIA matched) -> mismatched -- (either not matched or unsuitably matched)

Similarity of adj one-to-one

1 sense of one-to-one

Sense 1
one-to-one -- (used of relations such that each member of one set is associated with one member of a second set)
       => matched (vs. mismatched) -- (going well together; possessing harmonizing qualities)